Properties matched inline. Empty when no parent entries had matching
publisher_domain OR when the domain is in revoked_publisher_domains[].
Why inline resolution did not produce matches. Revocation is handled by
resolveInlinePublisherProperties (which short-circuits before
invoking this helper); per-selector callers using
resolveSingularInline directly must consult
adAgents.revoked_publisher_domains[] themselves before calling.
Outcome of inline-resolving a single (singular-form) selector against the parent file's
properties[].